So, with only 5 days until Christmas...I have a question on a gift for the significant other. She's on Verizon, and I'd like to get her an iPhone 4 for Christmas. However, I don't want her to have to re-do her contract or change her plan or anything too complicated. I found a used one with a good ESN and in great condition. Question is, could I buy it, ship it to her, then she'd simply take it to the Verizon store and have them activate it on her phone line, deactivating her other one, or is it more complicated than that? Can someone who's bought a used Verizon iPhone 4 as a gift chip in and tell me how to do this?